Folding camp-chair



S. C. HOPKINS.

FOLDING CAMP CHAIR.

Patented Jan.30, 1883.

%6um m WXLW UNITED STATES PATENT OFFICE.

SYLVANUS O. HOPKINS, OF

BOSTON, MASSACHUSETTS.

FOLDING CAMP-CHAIR.

SPECIFICATION forming part of LettersPatent No. 271,246, dated January30, 1883. Application filed February 20, 1882. [N0 model.)

To all whom it may concern? Be it known that I, SYLVANUS O. HOPKINS,

of Boston, in the county of Suffolk and State of Massachusetts, haveinvented certain new and useful Improvements in Folding (lamp- Ohairs,of which the following is a specification.

My invention relates to that class of folding canipchairshavingaflexible bottom and back, and wherein the seat-frame foldstogether, so

'as to form a compact bundle for transportation or when not in use.

The principal object of my invention is to so construct the crossedlegs, seat-frame, and back leg supports that when the chair is inposition for use it shall have all the desirable qualities possessed inthe common rigid chairs.

In this class of folding chairs asheretofore constructed, andparticularly those to which my invention most nearly relates, are foundto exist certain defects or objections, the most prominent of which isthe position of the rear legs in relation to the back-standards, whereinthe bottoms of said legs have a bearing inside of the vertical plane 'ofthe back-standards, whereby, if the chair be inclined backward, it isvery liable to tip over, and as with back crossed legs such positionbecomes more dangerous on accountofoneofsuch crossed legs having abearing upon a different plane from the other, and makes the sitter moreinsecure, particularlyif the chair be tipped backward, which position isvery desirable in this class of chairs. By my invention this and otherdefects or objections are fully overcome; and it consists in theconstruction, combination, and arrangement ofa pair of inclined orcrossed legs, with a pair of vertical parallel legs which connect withand extend upward above the seat-frame, so as to form back supportsorstandards, the whole being adapted to fold together into a compactbundle; and it further consists in details of construction hereinaftermore fully described, and set forth in the claim.

Figure 1 represents a perspective view of a folding camp-chairconstructed according to my invention. Fig. 2 represents a similar viewof the same in a folded position. Fig. 3 represents a horizontal sectionof a back standard attached the seat-frames B B, the rear ends of whichare provided with a projecting bolt or screw, 0, adapted to be connectedwith the vertical back-standards E E by means of the dovetail orT-shaped grooves D D, formed longitudinally therein, as shown, so as topermit the rear connections O to slide up and down therein freely as thechair is folded and unfolded, such connections having a bearing withinthe lower end of the said grooves D when the chair is unfolded and inposition. for use, as shown in Fig. 1, and is permitted to slide upwardtherein when folded, as shown in Fig.

2, said seat-frames B B having secured thereto the flexible bottom G,and the said vertical back-standards E E having secured thereto inlikemanner the flexible back-support H, formed of duck, canvas,carpeting, orothermaterial desired, as heretofore. The rear-end portionsof the said seat-bars or frame-pieces B are further supported by thecrossed braces I I, pivoted together at their point of crossing on ahorizontal plane corresponding with the front crossed legs, to which thecrossed brace I is connected by the horizontal rounds J, the lower endsof each brace I and I being permanently secured to the horizontal barsor rounds K K near their rear ends, which are pivoted to the rearvertical back-standards or parallel legs EE, the front ends of said barsor rounds K K being attached or rigidly secured to the front crossedlegs, A A, as shown in Figs. 1 and 2. By this construction the chair maybe folded together as shown in Fig. 2, and unfolded as shown in Fig. 1,wherein it will be observed that the back legs stand upon a verticalplane with the back-standards, of which they are a continuation or forma part.

It will be seen that the projecting bolt-heads or screw-heads formingthe connections 0 are inserted within the T-shaped grooves formed in theback-standards E through the enlarged 1 of pivoted crossed legsconnected at their upper ends with the seat-frame, and a pair of pivotedcrossed braces connected at their upper ends with said seat-frame and attheir lower ends with the horizontal rounds connecting said crossed legswith a pair of vertical legs, which are connected with the seat-framebyslidingconnectionsand,extendingabovethe same, are provided with aback-support, substantially as shown and described, as and for thepurposes set forth.

SYLVANUS c. HOPKINS.

Witnesses: I

SYLVENUs WALKER, B. 0. OLEMEN'rs.

